Are there procedure options that can help my eyes achieve an older, mature look? (photos)

I have big baby eyes and I wanted to know if there was any such procedure that could do the opposite of what most people desire and that's look older. I have a hard time feeling confident knowing that everyone around me thinks I'm a child. My iris is unnaturally big compared to averagely proportioned eyes. Is there a way to essentially "narrow" or manipulate the eyelids for a more steady, mature appearance?